Knowledge Base

Using Contingency Categories for monitoring of different voltage deviation limits for different contingencies

Previous knowledge base articles have covered both Monitoring voltages for Post Contingency Voltage Drop Criteria Monitoring which covered how to monitor all buses in the system for a particular voltage drop. How to specify different Voltage Deviation Limits for different buses in Contingency Analysis which did a similar thing but allowed the criteria to be […]

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September 30, 2015

Remote License Troubleshooting

If you are trying to start Simulator or Retriever using a remote license but the hardware key is not detected, you may need to manually point to the hardware key’s location on the network. To configure where your machine goes to look for remote license keys, make sure to run the full Simulator or Retriever installation […]

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June 10, 2013

Video Capture

PowerWorld Simulator does not include a built-in tool for video capture or movie making. Commercial and freeware tools are available from other sources to capture video from PowerWorld Simulator, Retriever, and any other desktop applications. Current offerings may be found here, or by simply searching online for video capture software.

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February 21, 2013

How do the key fields and required fields for aux files and copy/paste from Excel work?

Each object type in Simulator (i.e. Loads, Generators, Buses, etc…) has a number of key fields and additional required fields.  Key fields are fields that must be included for existing records when pasting data into Simulator from a spreadsheet application such as MS Excel or when loading information from an aux file.  Required fields are fields that must be specified (in addition […]

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July 5, 2012

Can I solve a Real-Time power flow in Retriever?

Yes.  The data that is imported from the real-time sources can be substituted for the underlying system data to solve a real-time power flow in Retriever, provided that: a complete system model with all required object fields necessary to run a power flow solution is provided (see case validation), and the underlying model fields (when […]

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July 5, 2012

I am getting $5000 / MW-hr LMP’s. Can that be correct?

If a constraint cannot be enforced due to insufficient controls, the slack variable associated with enforcing that constraint cannotbe removed from the LP basis.  Marginal cost depends on the arbitrary cost of the slack variable.  This value defaults to  $5000 per MW-hr in order to enforce the equality constraint that a control area’s generation should […]

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July 5, 2012

Can I have negative marginal prices? What do they mean?

Yes, in highly congested systems you can in fact see negative LMP’s at a bus (or buses). This is always coupled with high LMP’s at other buses.  A negative LMP means that serving an additional MW of load at the negative LMP bus will reduce the operating cost. More flow to the load creates a […]

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July 5, 2012

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